Yes and no. Most floaters are harmless and will fade as time passes. However, it is very important to understand that floaters may be a symptom of a serious problem â a torn or detached retina. When the vitreous gel pulls away from the retina, a tear may result.
American Airlines has its Admirals Club on the mezzanine level of the airside terminal. It is accessible by escalators in the center core area. Before a post-9/11 restructure of routes (effectively dehubbing Pittsburgh), US Airways had three clubs.
Cool data! Another neat thing to look at would be how the airline networks have changed over time. And not to nitpick, but Alaska Airlines has most of their flights going through Seattle-Tacoma, not Portland. Seatac is their hub airport.